Illumination source



FIG. 1 is a perspective view of an illumination source, showing my newdesign;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being amirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top elevational view thereof; and,

FIG. 6 is a bottom elevational view thereof.

The broken line showings in the Figures are for environmental purposesonly and form no part of the claimed design.

The ornamental design for an illumination source, as shown anddescribed.